# Math Help - Is This Relation a Function?

1. ## Is This Relation a Function?

Is This Relation a Function?

Is this relation a function?

(10,6), (10,6), (9,7), (7,9), (6,10).

2. Originally Posted by fdrhs1984
Is This Relation a Function?

Is this relation a function?

(10,6), (10,6), (9,7), (7,9), (6,10).
did you intend to list the same ordered pair twice, or is this a typo?

3. No two ordered pairs (i.e. different pairs) may have the same first term.
Is that true?

4. This is not a typo. The same point (10,6) is given on this list of points.

5. I don't follow. Is this a function or not? If not, why not? Thanks.

6. Those are not two pairs but one term written twice.

7. In that case, the relation is a function, right?

8. Originally Posted by fdrhs1984
In that case, the relation is a function, right?
More important than knowing the right answer is knowing why the answer is right.

So tell us, why is this relation a function?

9. Originally Posted by undefined
More important than knowing the right answer is knowing why the answer is right.

So tell us, why is this relation a function?

Each x-value is different making this relation is a function. Correct?

10. Originally Posted by fdrhs1984
Each x-value is different making this relation is a function. Correct?
That's correct.

11. Thanks!